Mushroom-bullet.



F. 0. HOAGLAND.

MUSHROOM BULLET.

APPLICATION f ILBD JULY s, 191s,

1,@7349. Patented sept. 1,6, 191s.

WITNESSES: w NVENTOR jm JLM@ @7M Armmvfy COLUMBIA LANOGRAPHco;,wAsH|NcrroN D c UNITE@ STATES PATENT FFIQE.

FRANK O. I-IOAGLAND, or BEIneEroET, CONNECTICUT, .assIeNoa To TEE VUNIONMETALLIC CARTRIDGE COMPANY, or BEIDGEPOET, CONNECTICUT, A Coarozea:

TION 0F CONNECTICUT.

MUSHROOM-BULLET.

Specification of Letters Patent.

Patented Sept. I6, i913.

Application filed July 3, 1913. Sera1No.v777,388.

To all whom t may concern Be it known that I, FRANK O. HOAGLAND,

a citizen of the United States, residing atV Bridgeport, county ofFairfield, State of Connecticut, have invented an Improvement inIi/Iushroom-Bullets, of which the following is a specification.

This invention has for its object to provide a hard pointed andpractically fulljacketed bullet that will have the flat trajectory andthe great muzzle energy, velocity, range, penetrative power and accuracyof ordinary full-jaeketed bullets combined with the great shocking powerof mushroom bullet-s; that is to say, my present invention enables me toproduce a mushroom bullet having all the advantages of an ordinaryfull-jacketed bullet and likewise having to the fullest extent theshocking powers of an ordinary soft-nosed mushroom bullet.

lith these ends in view I have produced the novel bullet which I willnow describe, referring to the accompanying drawing forming a part ofthis specification and using reference characters to indicate theseveral parts.

Figures l and 6 are elevations illustrating slightly variant forms of mynovel bullet; Fig. 2 a longitudinal section, the bullet having beengiven a quarter turn from the position in Fig. l; Fig. 3 a transversesection on the line 33 in Fig. 2, looking in the direction of thearrows; Fig. 4 a longitudinal section showing the transverse hole in thebullet filled with wax or other soft material to preserve the contour ofthe bullet; Fig. 5 a transverse secti-on on the line 5 5 in Fig. 6looking in the direction 0f the arrows, and Fig. 7 is a View showing thebullet mushroomed by iiring.

10 denotes the full jacket which is drawn from relatively hard metal ascupro-nickel, and ll the core of relatively soft metal as lead or analloy of lead which is cast in the form of a slug` and then swaged intothe jacket and the end of the jacket closed about the base of the coreeither partly covering the base as shown in Fig. 2 or wholly covering itas shown in Fig. 4.

I have discovered that an ordinary full j acketed bullet maybe caused tomushroom when it strikes an objective without impairing its otherqualities as a full jacketed bullet by drilling a hole or holes throughthe jacket and through the core at a short distance below the point ofthe bullet leaving the tip solid.

In Figs. l to 4, inclusive, I have shown a form in which a single hole12 is drilled straight through both sides of the jacket and the core,wholly removing the metal of both the jacket and the core but leavingthe tip solid. rIhe result is that when my novel bullet strikes anObjective and the solid tip is checked, the relatively soft metal of thecore will be forced Outward through the holes in the acket and thejacket itself having been weakened by the removal of metal will crumpleup and split, both the jacket and the core piling into a mass having noresemblance to the original contour of the bullet, as indicated in Fig.7.

In the form illustrated in Figs. 5 and 6, instead of drilling one holestraight through both sides of the jacket and the core, I have drilledthree holes in circular arrangement through one side of the jacket andthrough the core but not through the opposite side of the jacket. rIhespecial number of holes, the size of the holes or the exact distance ofthe holes from the point of the bullet are not essential features of theinvention. 'Ihe requirements are to remove a portion of the metal of thecore by drilling it out and to weaken the jacket sufliciently so thatwhen the tip is checked the relatively soft metal of the core will beforced out through the ioles and the weakened jacket will crumple up andsplit without, however, weakening the bullet sufficient-ly to make itnecessary to use special care in packing, shipping or handling thebullets or cartridges provided with them. In other words, the bullet isweakened near the point by drilling through the jacket and the coresuiiiciently to cause eective mushrooming when the tip is checked infiring but not sufliciently to affect the bullets in any way intransportation and handling.

If it is preferred to retain the supercial contour of the bullet, thehole or holes therein may be filled with waX or other soft Inaterial asindicated in Fig. 4.

Having thus described my invention I claim:

l. A bullet of the character described comprising a full jacket and arelatively soft core, the bullet being weakened near the point bydrilling through the jacket and through the core so that when the s-p4schecked in firing the metal 'of the core will be forced out through theholes and' the weakened jacket Will crulnple.

2. A bullet of the character describedY corn- Y met-al of the core Willhe forced out through the' holes and theweakened jacket Will crumple. 1

In testimony Whereoi1 I affix signature npresence of tWo Witnesses.

FRANK O. HOAGLAND.

Witnesses.:

S. YV. THERTON, E. M. CULVER.

Copies of this patent may Be otained for ve eents each by addressingvthe V Commissioner of Patents,1

Washington, D'. Cf.

